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(N0 Model-j W. V. ELLIOTT.

WATER HEATER FOR FIRE ENGINES No. 279,085. Patented June 5,1883.

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N. PETERS. Pmwumogn hor. Wnhingmn. D C.

A UNITED STATES' PATENT OFFICE.

\VILLIAM V. ELLIOTT, OF LIMA, OHIO, ASSIGNOR OF ONE-HALF TO GEORGE HALL, OF SAME PLACE.

WATER-HEATER FOR FIRE-ENGINES.

SPEGIFICATION f rming part of Letters Patent No. 279,085, dated June 5, 1883.

Application filed February 19, 1883. (No model.)

IO My present invention relates to certain improvements in water-heaters, and has for its object to provide means of improved construction, whereby the water in boilerssuch, for instance, as the boilers of steam fire-engines may be kept heated to a degree near the boil ing-p oint, so that when steam is wanted it may, by the application of more heat, be speedily made.

After describing the construction of the parts the invention will be designated in the claims. i

In the drawings hereto annexed, Figure l is a vertical section of the water-heater. Fig. 2 is a side view of the water-heater and boiler,

2 5 (broken) Fig. 3 is a top view of the burner and bottom of the waterheating chamber.

Fig. 4 is a top view of the burner alone. Fig.

5 is a cross-section on 50 an Fig. 6 is a crosssection on a z.

The letter A designates an upright tube or cylinder having its lower end, A, enlarged.

'Within this tube is a somewhat smaller tube,

B, also enlarged at its lower end. A space, 0, is

thus left between the two,i which in practice 3 5 may constitute simply an air-space, or which may be filled with asbestus or other packing, for the purpose of preventing loss of heat by radiation. The interior tube, B, constitutes 'a flue, B, forhot air and the ascending pro 40 ducts of combustion from the burner D below. The water from the boiler enters the heater by a pipe, E, and is heated primarily at the burner, as hereinafter described, and thence passes into and through a number of short vertical pipes, F, which are arranged in, two circles, as shown in Fig. 3. These circles of vertical pipes occupy the chamber formed by the enlargement A. The upper ends of the two circles of pipes are connected by a ringshaped head or conductor, F, from which a series of pipes, F, extendup through the hot air flue B. In the present instance five of these pipes are shown; but the number may vary from this, and they may extend straight or spirally. The upper ends of these are joined into a head or conductor, F from which an outlet pipe, G, extends laterally, passing through the side of the tubes A and B into the boiler H. By this construction and arrangement of pipes in the chamber and hot-air flue, the water passing through them is first sub-v jected to heat at the burner, and from there, in its passage all the way to the outlet-pipe G, it is constantly subjected to heat.

The burner D is of special construction, and is contrived with particular reference to its adaptability for heating water. It may be employed in connection with a water heater wherein the pipes are differentlyarranged than as here shown. This burner may be employcdto burn ordinary gas, or it may generate and burn the vapor of gasoline, as desired. The parts connected with the burner are the annular water-receiving chamber e, having a central vertical air and gas passage,

The pipe E from the boiler lets the water into this receiving-chamber. An annular head, 9, has a number of orifices, g, for the escape of gas. From each of these orifices a jet of flame projects when the burner is lighted. The central air and gas passage, f, and the annular head 9 are connected by passages 71. A waterheating chamber, -i, above the burner has a convex rounded bottom, 6, which sets down into the annular burner-head g,- thereby the jets of flame issuing from the orifices y en'- tirely surround and play against the said water-chamber i. The annular water-receiving chamber 6 below the burner and the waterchamber '5 above the burner are connected by ducts k, which pass under the burner-head g. The upper or neck part of the water-chamber connects with the base F, to which the circles of the vertical pipes F are attached. A small tube, N, conveys the gas to the burner, and has a gas outlet or aperture, p, which controlled by a valve or cock, q. The said outlet-aperture is directly below the central passage, f. It will be seen that when the burner is warm, gas issuing from the aperture ICO will be mingled with air in the central passage, f, on the principle of the Bunsen burner, and both air and gas will pass up and through the passages h to the annular burner-head y, where the jets of flame, being of the non-luminous character, create an intense heat. While the burner operates as just described, the water entering by pipe E surrounds the lower part of the burner, and from thence passes through the ducts k into the waterheating chamber i, and thence into the pipes F. This construction of burner and waterchambers and passages serves to utilize the largest possible proportion of the heat in heating the water. The'hot air produced by the jets of flame passes first up and around the pipes F, and then up the flue B, th ere surrounding the pipes F. A damper, r, at the top of the flue regulates the draft. A blow-off or cleansing pipe, s, is connected to the annular water-chamber e, and is closed by a cock, 1.

From what has already been stated the operation of the apparatus will be obvious. The water from the boiler enters the heater by the pipe E, and is subjected to the direct heat of the burner, and then to the. heat of the hot-air flue, and finally passes out of the heater by the lateral pipe G and into the top of the boiler. A circulation of the water .is thus maintained.

Having described my invention, I claim and desire to. secure by Letters Patent of the United States 1. A water-heater constructed as herein describ edthat is to say, an upright hot-air flue, B, having an enlarged lower end, A, which incloses a number of short vertical waterpipes, F, arranged in circles, the lower ends of the said short pipes connecting with abase, F provided with an inlet-pipe, and the upper ends with a ring-shaped head, F, from which a series of pipes, F extend up through the hot-air fiue to a head or conductor, F provided with a lateral outlet-pipe, G, as set forth.

2. In a water-heater, the combination of aburner secured tot-he lower end of the waterheater apparatus, an inlet or water-receiving chamber immediately below the burner, and

ducts to convey the water from the latter to the heater apparatus above, as set forth.

3. A burner having a vertical gas and air passage, an annular head, 9, provided with gas-escape orifices g, and passages h, connecting the "ertical passage and the annular head, in combination with a water-receiving 01121111 ber, 6, below theburner, a water-heating chamber above the burner, havi ng its bottom adapt ed to set down into the annular head, and ducts to convey the water from the receivingehamber to the heating-chamber, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

XVILLIAM V. ELLIOTT.

Vitnesses S. S. W'HEELER, CHAS. J. MANN. 

